Run results for: replaceAll vs regex replace

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.4.2

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
replace regex	93508816.0 Ops/sec
replace All	3591818.8 Ops/sec

Script Preparation code:

String.prototype.replaceAll = function(search, replacement) {
    var target = this;
    return target.replace(new RegExp(search, 'g'), replacement);
};

Tests:

replace regex
"this is it".replace(/ /g, "+");
replace All
"this is it".replaceAll(" ", "+");

Run results for: replaceAll vs regex replace

replace regex

replace All